Acetylene-lamp.



A. BOMIVIARITO.

ACETYLENE LAMP. APPLICATION FlLED AUG.17. |915.

Lfww., Patented Mar. 27, 1917. .96.1. 3i., j,

.ANTONIO BOMMARITO, OF ST. LOUIS, MISSOURI.

ACETYLENE-LAMP.

Specicaton of Letters Patent.

Patented Mar. 2"?, 191W.

Application filed August 17, 1915. Serial No. 45,944.

To all whom t may concern.

Be it known that I, ANTONIO BoMMARrro, a citizen of Italy, residing at St. Louis, in the State of Missouri, have invented new and useful Improvements in Acetylene- Lamps, of which the following is a` specication.

The invention relates to miners lamps, and more particularly to the class of acetylene lamps for use by miners.

The primary object of the invention 1s the provision of a lamp of this character wherein the water contained within the water reservoir can be forced into the carbid holder of the lamp in event that the communication between the two becomes clogged or choked, the water reservoir being of novel construction and containing an in'liatable member which serves to exert pressure upon the water for the proper feeding thereof to the carbid holder.

Another object of the invention is the provision of a lamp of this character wherein the water from the reservoir to the carbid holder can be regulated at will, thereby controlling` the liarne from the lamp when lighted.

A further object ofthe invention is the provision of a lamp of this character wherein the acetylene gas, prior to its consumption at the burner tip, is purified or cleaned for the production of an even flame and to avoid the clogging of the burner tip from sediment, incident to particles in the gas.

A still further object of the invention is the provision of a lamp of this character which is simple in construction, thoroughly reliable and ei'licient in operation and ineX- pensive in manufacture.

With these and other objects in view, the

invention consists in the construction, combination and arrangement of parts as will be hereinafter fully described, illustrated in the accompanying drawing, and pointed out in the claims hereunto appended.

In the drawing:

Figure 1 is a front elevation of a lamp constructed in accordance with the invention;

Fig. 2 is a top plan view thereof;

Fig. 3 is a vertical longitudinal sectional view;

Fig. l is a sectional view on the line lL- 1l in Fig. 2; and

Fig. 5 is a sectional view on the line 5-5 of Fig. 3 and looking in the direction of the arrows.

Similar reference characters denote corresponding parts in all the views throughout the drawings.

Referring to the drawings in detail, the lamp comprises a body A including an upper water reservoir 5 and a bottom carbid holder 6, the lower end portion or bottom of the water reservoir 5 being externally screw threaded, as at 7, while the upper or open end of the carbid holder 6 is likewise screw threaded at S so that the reservoir and holder can be detachably connected with each other. Detachably threaded on the upper end of the waterreservoir 5 and closing the saine is a cover 9 which is formed with a central air inlet nipplel 10 which communicates with the interior of an inflatable bag 11 mounted interiorly of the cover 9 and adapted to extend within the water res ervoir 5 when the cover is fastened thereon, the nipple being tted at its outer end with a detachable cap 12 provided with a central air inlet vent 13 so that air from the atmosphere will be admitted to the interior of the inflatable bag 11 for the expanding thereof. The bag 11 is molded'or otherwise constructed of the form shown, that is, having a cylindrical wall which is adapted to fit within the reservoir 5, and having outwardly curved or convex ends, and in its operative position one of such ends is forced inwardly, as illustrated in Figs. 3 and 4, to partly expel the air from the interior of the bag. The bag is of normal spherical shape and when in place the sides are held against ex pansion by the sides of the water reservoir 5. It is obvious that either section of the bag which, when in position, constitutes the end may be pressed inwardly as shown. The bag is utilized by removing the cap'lQ from the nipple 10 to provide a large vent and then compressingone portion of the bag within the other by hand, holding the parts in this position and reapplying the cap 12 to materially reduce the size of the vent. The cover 9 isv then applied to the reservoir 5 and as the water is gradually used therefrom the yent 13 will admit a small amount of air into the bag 5 so that it will gradually expand as the water is withdrawn from the reservoir in order that the normal elasticity of the bag will act with such inherent force upon the body of water to induce more or less pressure to force the Water to the to the same and integral With the said bottom of the reservoir is aV reticulated or d Y perforated cage which forms a'guard for Vthe Water tube 14 so as to 'arevent carbid Within the holder 6 from beingV forced into j the feed tube 14 and therebyobviztte interference With the feed oftheV Water from the reservoir 5 to the carbid holder G of the lamp. Y

Arranged interiorly ofthe Water reservoir 5 is a semi-circular or hopper shaped false bottom 16 to provide a gas circulating space 17 Which is filled with Wool or other fibrous substance 18 serving as a filter for the gas admitted tothe chamber 17 from the carbid holder 6, the bottom of the reservoir 5 being formed e'ccentrically With respect to the Water feed tube 14 and cage 15 With a hole 19 which establishes communication lbetween the vsaid carbid holder 6 and the gas circulating space 17 so that the gas produced vvithin the lamp can readily flow to the burner'20 which projects outwardly from Y the body A of the la-mp and is in direct communication' With the space 17 and carries a burner tip 21 of the ordinary Well known construction and also a reflector 22 Which is ofthe usual construction.

It is of course understood that the false bottom 16-has direct communication With the feed tube 14 so that the Water from the reservoir .5- Will flow into the feed tube and thence into the carbid holderV 16 for mixing With the carbid therein to produce gas.

.Formed on the Water reservoir 5 is a valve guide sleeve 23 in which is threaded a needle valve 24, the same being diagonally disposed and adapted to control the feed passage in the Water tube 14 for regulating the feed of WaterV from the reservoir to the carbid container, the needle valve .23 being formed at Y its outer-end with a peripheral knurled head 25 so that it'V can be actuated by hand in a convenient manner.

The cover 9 is formed with a corrugated or fluted external lian-ge 26 which permits the convenient application of the cover or its removal from the Yreservoir 5 at Will.

Y' VVVThe jointed `end of the Water reservoir 5 Y and carbid. holder 6 areformed with externalannular flanges'27, between Which is arranged a rubber gasket 28 to form a tight joint between the said reservoir and carbid container. Y Y Y 1 The inflatable bag 11 serves to.- force the Water fromrthe reservoir 5 into the container 6 and thereby assu-re a positive feed Vand thus make it possible to assure the feed of the Water in event ofthe choking of the YVfeedY pipe 14 'duringg'the use ofthe lamp.

From the foregoing it is thought that the construction and manner of operation of the device Will be understood and, therefore, a more extended explanation has been omitted.

Having thus described my invention, I claim:

1. A lamp of the class described comprising a Water reservoir, a carbid container detachably connected with the reservoir, a Water feed tube on the reservoir and extended within the container, a reticulated cage for the Water feed tube, means for controlling the feed of water from the reservoir to thecontainer, a removable cap for the reservoir, and an inflatable bag mounted in the cap completely closed against water and adapted to exert pressure upon the surface of the Water within the reservoir for effecting a force feed thereof to the container.

2. A lamp of the class described comprising a water reservoir, a carbid container detachably connected with the reservoir, a Water feed tube on the reservoir and extended Within the container, a reticulated cage for the Water feed tube, means for controlling the feed of Water from the reservoir to the container', a removable cap for the reservoir, an inflatable bag mounted in the cap completely closed against Water and adapted to exert pressure upon the surface of the Water in the reservoir for effecting a force feed thereof to the container, means on the cap for admitting air to the bag from the atn'iosphere, and a vent cap detachably mounted on said means.

3. A lamp of the class described comprising a Water reservoir, a carbid container detachably connected with the reservoir, a Water feed tube on the reservoir and extended Within the container, a reticulated cage for the Water feed tube, means for controlling the feed of Water from the reservoir to the container, a. removable cap for the reservoir, an inflatable bag mounted in the cap completely closed against water and adapted to exert pressure upon the surface of the water within the reservoir for effecting a force feed thereof to the container, means on the cap for admitting air to the bag from the atmosphere, a vent cap detachably mounted on said means, and a burner tube for admitting gas from the carbid container.

4. Alamp of the class described comprising a Water reservoir, a carbid container detachably connected with the reservoir, a water feed tube on the reservoir and extended Within the container, a reticulated cage foi-the Water feed tube, means for controlling the feed of Water from the reservoir to the container, a removable cap for the reservoir, an inflatable bag mounted in the cap completely closed against Water and adapted to exert pressure upon the Water Within the reservoir for effecting a force feed thereof to the container, means on the cap for admitting air to the bag from the atmosphere, a Vent cap detachably mounted on said means, a burner tube for admitting gas from the carbid container, and a false bottom in the reservoir and forming-a gas circulating space between it and the bottom of the reservoir.

5. A lamp of the class described comprising a water reservoir, a carbid container detachably connected with the reservoir, a water feed tube on the reservoir and eX- tended within the container, a reticulated cage for the water feed tube, means for controlling the feed of water from the reservoir to the container, a removable cap for the reservoir, an inflatable bag mounted in the cap completely closed against water and adapted to exert pressure upon the water within the reservoir for eecting a force feed thereof to the container, means on the cap for admitting air to the bag from the atmosphere, a vent cap detachably mounted on said means, a burner tube for admitting gas from the carbid container, a false bottom in the reservoir and forming a gas circulating space between it and the bottom of the reservoir, and a wool packing within said gas space, the bottom of the said reservoir being provided with a hole for admitting gas from the container to the gas space.

ln testimony whereof I aiiiX my signature in presence of two witnesses.

ANTONO BOMMARITO.

Witnesses: l

SANTI CASTELLI, JULIUS SELVAGGI.

Copies of this patent may be obtained for five cents each, by addressing the "Commissioner of Patents. Washington, 1). C. 

